Chain snap lock



" 'Abril 7.' 192s. 4 E. sEvERsoN CHAIN SNAP LOCK l Filed Jan. 2, 1925 /NVE/YTDH. ELMERm/ERSOAI.

Patented rger. 7, i925.

ulisn sTAr-Es ELI/IEB SEVER-SON, OF DEERFIELD, WISCONSIN.

CHAIN SNAP LOCK.

Application led January 2, 1925. Serial No. 292. l

To all whom it may concern.'

Be it known that I, ELMER SnvnnsoN, a citizen of the United States, residing at Deerfield, in the county of Dane and State of lliisconsin, have invente-d certain new and useful Improvements in Chain Snap Locks, of which the following is a specification.

My invention relates to chain snap locks for tie chains for horses and cattle, and the object of my invention is to provide a locking` member which will prevent the shackle being forced backward against the spring actuated sliding bolt, and the shackle allowed to drop down.

. I attain this object by the mechanism shown in the accompanying drawing in which- Fig. 1 is a plan; Y

Fig. 2, is a side elevation, with the shackle closed g Fig. 3, is a vertical longitudinal section, on line 3-3 Fig. 1;

Fig. ll, is a side elevation, with shackle open; Y

Fig. 5, is a plan of the sliding bolt;

Fig. 6, is a transverse vertical section on line (SM-t) Fig. 2.

Similar numerals refer to similar parts throughout the several views.

ine body l is of sheet metal in the form of a square tube for the distance of approximately two thirds its length, then the bottom plate 2 is removed, and the side walls are slightly tapered to the front end. A mortise 3 is pierced through the top plate '-l adjacent the front end and extends backward a distance suilicient for the U shaped portion of shackle 17 to pass downward through the same, and of a width equal to the inside diameter of the body. A second mortise 3b is pierced through the top plate Ll adjacent the rear end of mortise and entends backward a distance slightly more than the width of the depending lock-hook :3 the locking member A third mortise 3c is pierced through the top plate l and the bottom plate 2 adjacent the rear end of the body and on the left side thereof, said mortise being in vertical alignment with a groove la in the left side of the plug 6a is adapted for inserting a pin 6b and thereby securing the swivel 7 to the body. A spring 8 is disposed in the body contiguous the front end of the plug 6a and eX- tends forward to contact a sliding look-bolt 9, said lock-bolt as seen in Fig. is square on the front end with a central groove 10 vertically for admitting a key 11 and a portion l2 is removed from the right sideto allow the lock-hook 5 to pass below the arm 13 on the rear end of the slide, a portion 11iis also removed from the top of the slide through which a pin 15 passes to restrict the movement of the same longitudinally of the body.

shacklerl?1 by a pin 18, and the locking member 5a is slidably secured between the straps by a pin 19 loosely disposed in the slots 20. A chain 21 may be secured to the swivel 7 by the pin 22.

To secure the snap to any link in a chain, hook the shackle 17 through the link and force backward the sliding lock-bolt 9 until the front end of the shackle will pass up,- ward through the mortise 3', then force downward the lock-hook 5 through the mortise 3b until the hook engages and forces backward the arm 13 and passesbelow it, thereby closing the mortise 3b and preventing the shackle being moved backward, until the key 11 is inserted in the slot 10 and the sliding lock-bolt 9 is forced backward sufficient to remove the arm 13 from contact with the hook 5.

Having thus described my invention, I claim;

In a lock for tie chain snaps comprising a hollow body with a spring actuated slidable bolt within the body, a shackle adapted to pass transversely through the body with a member loosely connected to the rear end of the shackle by slotted straps, a portion of said member extending downward in the form of a hook, and adapted to be inserted through a mortise in the top of the body and engage the slidable bolt, in combination with a key for disengaging the bolt from the hook. n

In testimony whereof I aiiiX my signature in the presence of two subscribing witnesses.

ELMER SEVERSON.

. anni Two slotted straps 16 are piv-V otally connected to the rear Aend of the 

